Pet fountain



FIG. 1 is a top, front and left side isometric view of a pet fountain showing our new design;

FIG. 2 is a left side elevation view thereof;

FIG. 3 is a right side elevation view thereof;

FIG. 4 is a front elevation view thereof;

FIG. 5 is a rear elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is bottom plan view thereof.

The dash broken lines in the drawings depict portions of the pet fountain that form no part of the claimed design. The dash-dot broken lines in FIG. 7 represent the bounds of the claim and form no part of the claimed design. 

CLAIM The ornamental design for a pet fountain, as shown and described. 